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#include "ted-internal.h"
typedef struct {
const char *name;
const LSPCodeAction *lsp;
bool is_best;
} Action;
struct CodeAction {
LSPServerRequestID last_request;
// which buffer code action is open for
LSPDocumentID which_buffer;
// cursor position when code action was opened
BufferPos cursor_pos;
LSPResponse response;
Action *actions;
};
static bool ranges_touch(BufferPos p1, BufferPos p2, BufferPos q1, BufferPos q2) {
int cmp21 = buffer_pos_cmp(p2, q1);
if (cmp21 < 0) {
// p is entirely before q
return false;
}
int cmp12 = buffer_pos_cmp(p1, q2);
if (cmp12 > 0) {
// p is entirely after q
return false;
}
return true;
}
void code_action_init(Ted *ted) {
ted->code_action = calloc(1, sizeof *ted->code_action);
}
void code_action_open(Ted *ted) {
CodeAction *c = ted->code_action;
ted_cancel_lsp_request(ted, &c->last_request);
TextBuffer *buffer = ted_active_buffer(ted);
if (!buffer) return;
LSP *lsp = buffer_lsp(buffer);
if (!lsp) return;
autocomplete_close(ted);
c->which_buffer = buffer_lsp_document_id(buffer);
c->cursor_pos = buffer_cursor_pos(buffer);
BufferPos range_start = {0}, range_end = {0};
LSPRange range = {0};
if (buffer_selection_pos(buffer, &range_start)) {
range = buffer_selection_as_lsp_range(buffer);
range_end = buffer_cursor_pos(buffer);
if (buffer_pos_cmp(range_start, range_end) > 0) {
BufferPos tmp = range_start;
range_start = range_end;
range_end = tmp;
}
} else {
range_start = range_end = buffer_cursor_pos(buffer);
range.start = range.end = buffer_cursor_pos_as_lsp_position(buffer);
}
LSPRequest req = {
.type = LSP_REQUEST_CODE_ACTION,
};
LSPRequestCodeAction *code_action_req = &req.data.code_action;
code_action_req->document = buffer_lsp_document_id(buffer);
code_action_req->range = range;
arr_foreach_ptr(buffer_diagnostics(buffer), const Diagnostic, d) {
if (ranges_touch(range_start, range_end, d->pos, d->end)) {
LSPString raw = lsp_request_add_string(&req, d->raw);
arr_add(code_action_req->raw_diagnostics, raw);
}
}
c->last_request = lsp_send_request(lsp, &req);
}
bool code_action_is_open(Ted *ted) {
CodeAction *c = ted->code_action;
return arr_len(c->response.data.code_action.actions) != 0;
}
void code_action_close(Ted *ted) {
CodeAction *c = ted->code_action;
lsp_response_free(&c->response);
arr_free(c->actions);
memset(&c->response, 0, sizeof c->response);
}
bool code_action_process_lsp_response(Ted *ted, const LSPResponse *response) {
CodeAction *c = ted->code_action;
if (response->request.id != c->last_request.id
|| response->request.type != LSP_REQUEST_CODE_ACTION) {
return false;
}
if (arr_len(response->data.code_action.actions) == 0) {
// no code actions
code_action_close(ted);
ted_flash_error_cursor(ted);
return false;
}
lsp_response_free(&c->response);
c->response = *response;
arr_free(c->actions);
int best_score = -1;
Action *best_action = NULL;
arr_foreach_ptr(response->data.code_action.actions, const LSPCodeAction, action) {
Action *action_out = arr_addp(c->actions);
action_out->lsp = action;
action_out->name = lsp_response_string(response, action->name);
int score = 0;
if (action->is_preferred)
score += 10;
if (action->kind == LSP_CODE_ACTION_QUICKFIX)
score += 1;
if (score > best_score) {
best_action = action_out;
best_score = score;
}
}
best_action->is_best = true;
if (best_action != c->actions) {
// move to top
Action best = *best_action;
memmove(c->actions + 1, c->actions, (size_t)(best_action - c->actions) * sizeof *c->actions);
*c->actions = best;
}
return true;
}
void code_action_quit(Ted *ted) {
CodeAction *c = ted->code_action;
code_action_close(ted);
free(c);
ted->code_action = NULL;
}
static void code_action_perform(Ted *ted, const LSPCodeAction *action) {
CodeAction *c = ted->code_action;
const LSPResponse *response = &c->response;
LSPServerRequestID request_id = c->last_request;
LSP *lsp = ted_get_lsp_by_id(ted, request_id.lsp);
ted_perform_workspace_edit(ted, lsp, response, &action->edit);
code_action_close(ted);
}
void code_action_select_best(Ted *ted) {
CodeAction *c = ted->code_action;
const Action *best = NULL;
arr_foreach_ptr(c->actions, const Action, action)
if (action->is_best)
best = action;
if (best)
code_action_perform(ted, best->lsp);
}
void code_action_frame(Ted *ted) {
CodeAction *c = ted->code_action;
if (arr_len(c->actions) == 0)
return;
TextBuffer *buffer = ted_active_buffer(ted);
if (!buffer) {
code_action_close(ted);
return;
}
LSP *lsp = buffer_lsp(buffer);
if (!lsp || lsp_get_id(lsp) != c->last_request.lsp) {
// LSP or active buffer changed
code_action_close(ted);
return;
}
if (buffer_lsp_document_id(buffer) != c->which_buffer) {
// buffer changed
code_action_close(ted);
return;
}
if (!buffer_pos_eq(buffer_cursor_pos(buffer), c->cursor_pos)) {
// cursor moved
code_action_close(ted);
return;
}
const Settings *settings = ted_active_settings(ted);
vec2 cursor_pos = buffer_pos_to_pixels(buffer, buffer_cursor_pos(buffer));
float x = cursor_pos.x, y = cursor_pos.y;
Font *font = ted->font, *font_bold = ted->font_bold;
float char_height = text_font_char_height(font);
float padding = settings->padding;
float border_thickness = settings->border_thickness;
float panel_width = 0, panel_height = (char_height + border_thickness) * (float)arr_len(c->actions);
arr_foreach_ptr(c->actions, const Action, action) {
float row_width = text_get_size_vec2(font, action->name).x
+ char_height * 6 + padding * 2;
if (row_width > panel_width)
panel_width = row_width;
}
if (x > ted->window_width / 2) {
x -= panel_width;
}
if (y > ted->window_height / 2) {
y -= panel_height + char_height;
} else {
y += char_height;
}
Rect panel_rect = {{x,y},{panel_width,panel_height}};
gl_geometry_rect(panel_rect, settings_color(settings, COLOR_BG));
gl_geometry_rect_border(panel_rect, border_thickness, settings_color(settings, COLOR_AUTOCOMPLETE_BORDER));
const Action *selected_action = NULL;
arr_foreach_ptr(c->actions, const Action, action) {
Rect entry_rect = {{x, y}, {panel_width, char_height}};
if (rect_contains_point(entry_rect, ted->mouse_pos)) {
ted->cursor = ted->cursor_hand;
gl_geometry_rect(entry_rect, settings_color(settings, COLOR_AUTOCOMPLETE_HL));
}
arr_foreach_ptr(ted->mouse_clicks[SDL_BUTTON_LEFT], const MouseClick, click)
if (rect_contains_point(entry_rect, click->pos))
selected_action = action;
if (action != c->actions) {
Rect border = {{x, y}, {panel_width, border_thickness}};
gl_geometry_rect(border, settings_color(settings, COLOR_AUTOCOMPLETE_BORDER));
y += border_thickness;
};
text_utf8(action->is_best ? font_bold : font,
action->name, x + padding, y, settings_color(settings, COLOR_TEXT));
if (action->is_best) {
text_utf8_anchored(font, "(Enter)",
panel_rect.pos.x + panel_rect.size.x - padding, y,
settings_color(settings, COLOR_COMMENT),
ANCHOR_TOP_RIGHT);
}
y += char_height;
}
gl_geometry_draw();
text_render(font);
text_render(font_bold);
if (selected_action) {
code_action_perform(ted, selected_action->lsp);
} else {
arr_foreach_ptr(ted->mouse_clicks[SDL_BUTTON_LEFT], const MouseClick, click) {
if (!rect_contains_point(panel_rect, click->pos)) {
code_action_close(ted);
}
}
}
}
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